A bolt with no head is commonly referred to as a screw.
Countersinking is the forming of a shallow conical shape into a hole or fastener position to accommodate the matching conical head of a flat head screw. Generally, counterboring is the forming of a much deeper, squared bottom, cylindrical area at the origin of a hole or fastener position to accommodate and receive the head of a round-headed fastener, such as a socket head cap screw. Both processes are for the purpose of positioning the fastener such that its head is flush with or below the surface of the component which it is fastening. "Recessed" as it were.
Countersinking is the forming of a shallow conical shape into a hole or fastener position to accommodate the matching conical head of a flat head screw. Generally, counterboring is the forming of a much deeper, squared bottom, cylindrical area at the origin of a hole or fastener position to accommodate and receive the head of a round-headed fastener, such as a socket head cap screw. Both processes are for the purpose of positioning the fastener such that its head is flush with or below the surface of the component which it is fastening. "Recessed" as it were.
The best way to choose the right driver bit for a specific screw or fastener is to match the bit type to the screw head type. For example, use a Phillips bit for Phillips screws and a flathead bit for flathead screws. It's important to ensure the bit size matches the screw size to prevent stripping or damaging the screw head.
A TCB screw is a type of fastener with a truss head and a square drive. It is commonly used in construction and woodworking for securing materials together. The truss head provides a wider surface area to distribute load evenly.
Head thickness refers to the distance between the top and bottom surfaces of the head of a fastener, such as a bolt or screw. It is an important measurement to ensure proper fit and functionality when joining materials together.
A bib screw is a type of fastener used to secure a bib tap or faucet to a wall or plumbing fixture. It typically has a flat head and is designed to be screwed into place to hold the bib tap securely.
Nail
An inclined plane wrapped around a cylinder.
A screw is a type of fastener that consists of a threaded shaft and a head. It is used to join two or more surfaces by rotating it into a pre-drilled hole. Screws come in various sizes, shapes, and materials to suit different applications.
The tool used to remove a screw with a star-shaped head and a dot in the middle is called a Torx driver or Torx wrench. This type of screw is often used in automotive and electronic applications due to its resistance to stripping. The design allows for better torque application and minimizes the risk of damage to the screw head.
A square screw head is commonly known as a Robertson screw head.